freebsd-dev/sys/fs/nfsclient/nfs_kdtrace.h
Rick Macklem 8f0e65c915 Add DTrace support to the new NFS client. This is essentially
cloned from the old NFS client, plus additions for NFSv4. A
review of this code is in progress, however it was felt by the
reviewer that it could go in now, before code slush. Any changes
required by the review can be committed as bug fixes later.
2011-06-18 23:02:53 +00:00

121 lines
4.4 KiB
C

/*-
* Copyright (c) 2009 Robert N. M. Watson
* All rights reserved.
*
* This software was developed at the University of Cambridge Computer
* Laboratory with support from a grant from Google, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NFSCL_NFS_KDTRACE_H_
#define _NFSCL_NFS_KDTRACE_H_
#ifdef KDTRACE_HOOKS
#include <sys/dtrace_bsd.h>
/*
* Definitions for NFS access cache probes.
*/
extern uint32_t nfscl_accesscache_flush_done_id;
extern uint32_t nfscl_accesscache_get_hit_id;
extern uint32_t nfscl_accesscache_get_miss_id;
extern uint32_t nfscl_accesscache_load_done_id;
#define KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp) do { \
if (dtrace_nfscl_accesscache_flush_done_probe != NULL) \
(dtrace_nfscl_accesscache_flush_done_probe)( \
nfscl_accesscache_flush_done_id, (vp)); \
} while (0)
#define KDTRACE_NFS_ACCESSCACHE_GET_HIT(vp, uid, mode) do { \
if (dtrace_nfscl_accesscache_get_hit_probe != NULL) \
(dtrace_nfscl_accesscache_get_hit_probe)( \
nfscl_accesscache_get_hit_id, (vp), (uid), \
(mode)); \
} while (0)
#define KDTRACE_NFS_ACCESSCACHE_GET_MISS(vp, uid, mode) do { \
if (dtrace_nfscl_accesscache_get_miss_probe != NULL) \
(dtrace_nfscl_accesscache_get_miss_probe)( \
nfscl_accesscache_get_miss_id, (vp), (uid), \
(mode)); \
} while (0)
#define KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, uid, rmode, error) do { \
if (dtrace_nfscl_accesscache_load_done_probe != NULL) \
(dtrace_nfscl_accesscache_load_done_probe)( \
nfscl_accesscache_load_done_id, (vp), (uid), \
(rmode), (error)); \
} while (0)
/*
* Definitions for NFS attribute cache probes.
*/
extern uint32_t nfscl_attrcache_flush_done_id;
extern uint32_t nfscl_attrcache_get_hit_id;
extern uint32_t nfscl_attrcache_get_miss_id;
extern uint32_t nfscl_attrcache_load_done_id;
#define KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp) do { \
if (dtrace_nfscl_attrcache_flush_done_probe != NULL) \
(dtrace_nfscl_attrcache_flush_done_probe)( \
nfscl_attrcache_flush_done_id, (vp)); \
} while (0)
#define KDTRACE_NFS_ATTRCACHE_GET_HIT(vp, vap) do { \
if (dtrace_nfscl_attrcache_get_hit_probe != NULL) \
(dtrace_nfscl_attrcache_get_hit_probe)( \
nfscl_attrcache_get_hit_id, (vp), (vap)); \
} while (0)
#define KDTRACE_NFS_ATTRCACHE_GET_MISS(vp) do { \
if (dtrace_nfscl_attrcache_get_miss_probe != NULL) \
(dtrace_nfscl_attrcache_get_miss_probe)( \
nfscl_attrcache_get_miss_id, (vp)); \
} while (0)
#define KDTRACE_NFS_ATTRCACHE_LOAD_DONE(vp, vap, error) do { \
if (dtrace_nfscl_attrcache_load_done_probe != NULL) \
(dtrace_nfscl_attrcache_load_done_probe)( \
nfscl_attrcache_load_done_id, (vp), (vap), \
(error)); \
} while (0)
#else /* !KDTRACE_HOOKS */
#define KDTRACE_NFS_ACCESSCACHE_FLUSH_DONE(vp)
#define KDTRACE_NFS_ACCESSCACHE_GET_HIT(vp, uid, mode)
#define KDTRACE_NFS_ACCESSCACHE_GET_MISS(vp, uid, mode)
#define KDTRACE_NFS_ACCESSCACHE_LOAD_DONE(vp, uid, rmode, error)
#define KDTRACE_NFS_ATTRCACHE_FLUSH_DONE(vp)
#define KDTRACE_NFS_ATTRCACHE_GET_HIT(vp, vap)
#define KDTRACE_NFS_ATTRCACHE_GET_MISS(vp)
#define KDTRACE_NFS_ATTRCACHE_LOAD_DONE(vp, vap, error)
#endif /* KDTRACE_HOOKS */
#endif /* !_NFSCL_NFS_KDTRACE_H_ */